adding in node tolerations to cluster-autoscaler deployment (#1770)

stable/cluster-autoscaler/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 description: Scales worker nodes within autoscaling groups.
 icon: https://github.com/kubernetes/kubernetes/blob/master/logo/logo.png
 name: cluster-autoscaler
-version: 0.1.1
+version: 0.1.2
 sources:
   - https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler
   - https://github.com/spotinst/kubernetes-autoscaler/tree/master/cluster-autoscaler

stable/cluster-autoscaler/README.md

@@ -4,8 +4,10 @@
 
 ## TL;DR:
 
+## Helm < 2.5
+
 ```console
-$ helm install stable/cluster-autoscaler -f values.yaml
+$ helm install stable/cluster-autoscaler --name my-release -f values.yaml
 ```
 Where `values.yaml` contains:
 
@@ -15,6 +17,11 @@ autoscalingGroups:
     maxSize: 10
     minSize: 1
 ```
+## Helm >= 2.5
+
+```console
+$ helm install stable/cluster-autoscaler --name my-release autoscalingGroups[0].name=your-asg-name,autoscalingGroups[0].maxSize=10,autoscalingGroups[0].minSize=1
+```
 
 ## Introduction
 
@@ -25,7 +32,7 @@ This chart bootstraps an cluster-autoscaler deployment on a [Kubernetes](http://
 
 ## Installing the Chart
 
-In order for the chart to configure the cluster-autoscaler properly during the installation process, you must provide some minimal configuration which can't rely on defaults. This includes at least one element in the `autoscalingGroups` array and its three values: `name`, `minSize` and `maxSize`. These parameters cannot be passed to helm using the `--set` parameter at this time, so you must supply these using a `values.yaml` file such as:
+In order for the chart to configure the cluster-autoscaler properly during the installation process, you must provide some minimal configuration which can't rely on defaults. This includes at least one element in the `autoscalingGroups` array and its three values: `name`, `minSize` and `maxSize`. If you are using Helm < 2.5 these parameters cannot be passed to helm using the `--set` parameter, so you must supply these using a `values.yaml` file such as:
 
 ```
 autoscalingGroups:
@@ -36,10 +43,18 @@ autoscalingGroups:
 
 To install the chart with the release name `my-release`:
 
+## Helm < 2.5
+
 ```console
 $ helm install stable/cluster-autoscaler --name my-release -f values.yaml
 ```
 
+## Helm >= 2.5
+
+```console
+$ helm install stable/cluster-autoscaler --name my-release autoscalingGroups[0].name=your-asg-name,autoscalingGroups[0].maxSize=10,autoscalingGroups[0].minSize=1
+```
+
 The command deploys cluster-autoscaler on the Kubernetes cluster using the supplied configuration. The [configuration](#configuration) section lists the parameters that can be configured during installation.
 
 > **Tip**: List all releases using `helm list`
@@ -104,6 +119,7 @@ Parameter | Description | Default
 `spotinst.image.repository` | Image (used if `cloudProvider=spotinst`) | `spotinst/kubernetes-cluster-autoscaler`
 `spotinst.image.tag` | Image tag (used if `cloudProvider=spotinst`) | `v0.6.0`
 `spotinst.image.pullPolicy` | Image pull policy (used if `cloudProvider=spotinst`) | `IfNotPresent`
+`tolerations` | List of node taints to tolerate (requires Kubernetes >= 1.6) | `[]`
 
 
 Specify each parameter you'd like to override using a YAML file as described above in the [installation](#Installing the Chart) section.

stable/cluster-autoscaler/templates/deployment.yaml

@@ -65,6 +65,8 @@ spec:
 {{ toYaml .Values.nodeSelector | indent 8 }}
     {{- end }}
       serviceAccountName: {{ if .Values.rbac.create }}{{ template "fullname" . }}{{ else }}"{{ .Values.rbac.serviceAccountName }}"{{ end }}
+      tolerations:
+{{ toYaml .Values.tolerations | indent 8 }}
       volumes:
         - name: ssl-certs
           hostPath:

stable/cluster-autoscaler/values.yaml

@@ -14,6 +14,8 @@ image:
   tag: v0.6.0
   pullPolicy: IfNotPresent
 
+tolerations: []
+
 extraArgs: {}
   # scale-down-delay: 10m
   # scale-down-unneeded-time: 10m